Tig Welding Stainless Steel Pipe Amperage

Recommended shielding gas for short circuit stainless steel mig welding is a tri mix shielding gas.

Tig welding stainless steel pipe amperage.

I can t find much down and dirty information about proper weld preparation and argon purging technique. The more heat you put into stainless steel tig welding the worse your weld will look and the more your project will warp. When welding stainless steel use dcen polarity and 2 thoriated tungsten. Ease of use easier to use products through auto settings and better visibility.

Sanitary stainless pipe welds. However this does not mean that you should turn down your amperage. Use argon as shielding gas. Shielding gas 90 of applications can be done with 100 argon.

Tig root and hot pass 6 inch sch 80 6g pipe steel walking the cup tig root pass pushed in after hot pass proper tig weld open root weld penetration common problems with open root tig welds when it comes to open root tig welds there are some common problems but all of them are easy to fix. Carbon steel stainless steel and aluminum can all be welded using pure argon shielding gas. Purging is normally carried out with argon gas as it is totally inert and as it is readily available in the welding environment. For stainless steel welding you should purge to an oxygen level of 0 1 1 000 parts per million.

Below is a quick guide for selecting the right items for your tig welding. Beginners might find the stainless chart handy for mild steel the lower amps will compensate for a slower travel speed. This is basic set up information if you have questions please leave it in the comments sections. For example you can use 90 he 7 5 ar and 2 5 co2.

Lincoln electric how to gtaw tig weld stainless steel. How to purge with ar. I am currently trying to get my certs for pipe so i can get a job up north at the chevron oil refinery but im having some trouble getting enough penetration on the root. I am fairly new to welding at least pipe.

By andy boonville i m trying to learn how to tig weld sanitary stainless pipes usually 1 5 to 2 diameter at the brewery where i work. Especially on stainless gravity makes it even easier. Learn more about welding product technologies and solutions and which products feature them. Stainless is less thermally conductive than mild steel so heat does not flow away from the weld quite so quickly.

This will require traveling much slower and therefore produce more heat input on an overall scale.